Home / 14,621.85-20,178.63-8,248.32

Finding the Fourth Proportional to 14,621.85, 20,178.63 and 8,248.32

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Solution

The fourth proportional to 14,621.85, 20,178.63 and 8,248.32 is: 11,382.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,621.85 : 20,178.63 = 8,248.32 : x
  2. Step 2: Convert to fraction form
    14,621.85/20,178.63 = 8,248.32/x
  3. Step 3: Cross multiply
    14,621.85x = 20,178.63 × 8,248.32
  4. Step 4: Simplify right side
    14,621.85x = 166,439,797.40
  5. Step 5: Solve for x
    x = 166,439,797.40/14,621.85
  6. Step 6: Final answer
    x = 11,382.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.